So I’ve been working on the trinary thing, worked out basically I’m using a negative charge to represent ‘2’. Hence I’m really dealing with a saw tooth (hard shaped sine) wave. So the clock generator may just be a bodged sine wave generator instead of a 555. Or I could double up the 555 and kill one of the 4 states. Sine would be more clean but 555s a lot easier to play with on a bread board. Once the clocks done then I need to work out the three state flippty-flop. All fun stuff that probably has no use but stops me reading paranoid inducing social media, news and computer games.